claude-code - 💡(How to fix) Fix Claude in Chrome: futuresoptix.com incorrectly blocked by domain classifier [1 comments, 2 participants]

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anthropics/claude-code#47109Fetched 2026-04-13 05:41:13
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The Claude in Chrome extension (v1.0.66) blocks all interaction with futuresoptix.com, a private Streamlit trading analytics app hosted on AWS (ECS/ALB with Route 53 + ACM SSL). The domain is classified as blocked (category1/category2) by the server-side URL categorization API.

The ALB URL (Future-Servi-*.us-east-2.elb.amazonaws.com) is also blocked.

Root Cause

The Claude in Chrome extension (v1.0.66) blocks all interaction with futuresoptix.com, a private Streamlit trading analytics app hosted on AWS (ECS/ALB with Route 53 + ACM SSL). The domain is classified as blocked (category1/category2) by the server-side URL categorization API.

The ALB URL (Future-Servi-*.us-east-2.elb.amazonaws.com) is also blocked.

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Description

The Claude in Chrome extension (v1.0.66) blocks all interaction with futuresoptix.com, a private Streamlit trading analytics app hosted on AWS (ECS/ALB with Route 53 + ACM SSL). The domain is classified as blocked (category1/category2) by the server-side URL categorization API.

The ALB URL (Future-Servi-*.us-east-2.elb.amazonaws.com) is also blocked.

Expected Behavior

futuresoptix.com should be accessible — it's a legitimate private business tool, not a harmful site.

Actual Behavior

  • screenshot, read_page, navigate, find, and all other browser tools return: "Permission denied for this action on this domain" or "Navigation to this domain is not allowed"
  • The extension works fine on other sites (e.g., app.tradezella.com, github.com)

Reproduction

  1. Navigate to https://futuresoptix.com in Chrome
  2. Try any Claude in Chrome MCP tool on that tab
  3. All tools are blocked

Environment

  • Claude in Chrome v1.0.66
  • Chrome on Windows 11
  • Extension has host_permissions: ["<all_urls>"]
  • Site access set to "On all sites" in Chrome extension settings

Request

Please whitelist futuresoptix.com and *.elb.amazonaws.com in the URL classifier, or provide a user-configurable allowlist for domains the user owns.

Related issues: #43279, #40173, #36767

extent analysis

TL;DR

The issue can be resolved by whitelisting futuresoptix.com and *.elb.amazonaws.com in the URL classifier or providing a user-configurable allowlist for domains the user owns.

Guidance

  • Verify that the domain classification is the root cause by checking the server-side URL categorization API logs to confirm the classification of futuresoptix.com as blocked.
  • Check the Chrome extension settings to ensure that the host_permissions are correctly set to ["<all_urls>"] and site access is set to "On all sites".
  • Consider implementing a user-configurable allowlist for domains to provide more flexibility and control over allowed domains.
  • Review related issues (#43279, #40173, #36767) to see if they provide any additional insight or potential solutions.

Example

No code snippet is provided as it is not clearly supported by the issue.

Notes

The solution may require changes to the server-side URL categorization API or the Chrome extension configuration. The issue may not be resolved solely through client-side changes.

Recommendation

Apply a workaround by whitelisting futuresoptix.com and *.elb.amazonaws.com in the URL classifier, as this is a more immediate solution than implementing a user-configurable allowlist.

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claude-code - 💡(How to fix) Fix Claude in Chrome: futuresoptix.com incorrectly blocked by domain classifier [1 comments, 2 participants]